mt7601u: fix dma from stack address

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DMA to variables located on the stack is a bad idea.
For simplicity and to avoid frequent allocations create
a buffer inside the device structure.  Protect this
buffer with vendor_req_mutex.  Don't protect vendor
requests which don't use this buffer.

Signed-off-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

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Jakub Kicinski 2015-07-31 15:04:46 +02:00 • committed by Kalle Valo

parent 7845af35e0

commit bed429e1ae

3 changed files with 34 additions and 35 deletions

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4

drivers/net/wireless/mediatek/mt7601u/mt7601u.h

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63

drivers/net/wireless/mediatek/mt7601u/usb.c

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2

drivers/net/wireless/mediatek/mt7601u/usb.h

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